A. Code Adopted: The international residential code, 2003 edition, is hereby adopted by reference, except for such portions as are specifically hereinafter deleted, modified or amended.
B. Purpose: The purpose of this international residential code is to provide minimum requirements to safeguard life or limb, health, and public welfare and the protection of property as it relates to these safeguards by regulating and controlling the design, construction, prefabrication, equipment or appliance installation, quality of materials, and repair of detached one- and two-family dwellings not more than three (3) stories in height.
C. Code On File: A copy of the international residential code, 2003 edition, including all amendments made by this section shall be kept on file in the office of the city clerk and the same is hereby adopted and incorporated by this chapter as fully as if set out in length herein and the provisions hereof including all deletions or modifications shall be controlling in the construction of all one- and two-family dwelling units within the jurisdiction of the city.
D. Deletions And Modifications: The international residential code, 2003 edition, is adopted as set forth hereinabove with the following deletions and modifications:
1. Any reference to "Family" is hereby deleted and shall be governed by the Carbondale Revised Code.
2. Any reference to "Plumbing" is hereby deleted and shall be governed by the Carbondale Revised Code.
3. Any reference to "Energy Conservation" is hereby deleted and shall be governed by the Carbondale Revised Code.
4. Any reference under the ICC Residential Code to "Board of Appeals" is hereby deleted and shall be governed by the Carbondale City Code.
5. Any reference under the ICC Residential Code to "Electrical" is hereby deleted and shall be governed by the Carbondale Revised Code.
6. Any reference to the Climate and Geographic Design Criteria under the ICC Residential Code shall be as follows, as table R301.2(1):
TABLE R301.2(1)
CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA
Ground Snow Load | Wind Speed (mph) | Seismic Design Category | Weathering | Frost Line Depth | Termite | Decay | Winter Design Temp | Ice Shield Under Layment Required | Flood Hazards | Air Freezing Index | Mean Annual Temp |
20 | 90 | D2 | Severe | 18" | Moderate Heavy | 10 | Yes | 750 |
For SI: 1 pound per square foot = 0.0479 kN/m2, 1 mile per hour = 1.609 km/h.
a. Weathering may require a higher strength concrete or grade of masonry than necessary to satisfy the structural requirements of this code. The weathering column shall be filled in with the weathering index (i.e., "negligible", "moderate" or "severe") for concrete as determined from the Weathering Probability Map [Figure R301.2(3)]. The grade of masonry units shall be determined from ASTM C34, C55, C62, C73, C90, C129, C145, C216 or C652.
b. The frost line depth may require deeper footings than indicated in Figure R403.1(1). The jurisdiction shall fill in the frost line depth column with the minimum depth of footing below finish grade.
c. The jurisdiction shall fill in this part of the table with "very heavy", "moderate to heavy", "slight to moderate", or "none to slight" in accordance with Figure R301.2(6) depending on whether there has been a history of local damage.
d. The jurisdiction shall fill in this part of the table with "moderate to severe," "slight to moderate," or "not to slight" in accordance with Figure R301.2(7) depending on whether there has been a history of local damage.
e. The jurisdiction shall fill in this part of the table with the wind speed from the basic wind speed map [Figure R301.2(4)]. Wind exposure category shall be determined on a site-specific basis in accordance with Section R301.2.1.4.
f. The outdoor design dry bulb temperature shall be selected from the columns of 971/2 percent values for winter from Appendix D of the Illinois State Plumbing Code. Deviations from the Appendix D temperatures shall be permitted to reflect local climates or local weather experience as determined by the building official.
g. The jurisdiction shall fill in this part of the table with the Seismic Design Category determined from Section R301.2.2.1.
h. The jurisdiction shall fill in this part of the table with (a) the date of the jurisdiction's entry into the National Flood Insurance Program (date of adoption of the first code or ordinance for management of flood hazard areas), (b) the date(s) of the currently effective FIRM and FBFM, or other flood hazard map adopted by the community, as may be amended.
i. In accordance with Sections R905.2.7.1., R905.4.3., R905.5.3., R905.6.3., R905.7.3. and R905.8.3., for areas where the average daily temperature in January is 25°F (-4°C) or less, or where there has been a history of local damage from the effects of ice damming, the jurisdiction shall fill in this part of the table with "YES." Otherwise, the jurisdiction shall fill in this part of the table with "NO".
j. The jurisdiction shall fill in this part of the table with the 100-year return period air freezing index (BF-days) from Figure R403.3(2) or from the 100-year (99%) value on the National Climatic Data Center data table "Air Freezing Index-USA Method (Base 32° Fahrenheit)" at www.ncdc.noaa.gov/fpsf.html.
k. The jurisdiction shall fill in this part of the table with the mean annual temperature from the National Climatic Data Center data table "Air Freezing Index-USA Method (Base 32° Fahrenheit)" at www.ncdc.noaa.gov/fpsf.html.
(Ord. 2003-72)